Sylvania



(No Model.)

A. YOUNG & W. WENNER. MACHINE FOR SEWING LOOPED FABRICS.

Patented Feb. 15, 1 898.

UNITED STATES PATENT @EETQE.

ALBERT YOUNG AND WILLIAM VVENNER, OF PHILADELPHIA, PENN- SYLVANIA.

MACHINE FOR SEWING LOOPED FABRICS.

SPECIFICATION forming part of Letters Patent No. 599,136, dated February 15, 1898.

Application filed November 25, 189

To all whom Lt may concern.-

Be it known that we, ALBERT YOUNG and WILLIAM W ENNER, citizens of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Brass and Needle Protectors for Loop-Machines; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in machines for uniting knit fabrics, or what is technically known as loop-machines, and especially the kind wherein the needle is passed outward from the base or fastening of the points, which encircle the machine and project outward and upon which the fabric is secured; and the objects of our improvement are to guide the curved needle so that it shall at all times pass into the groove on the upper side of the points, and thereby always into the loop of the fabric, avoiding dropping stitches and imperfect work, the bending and breaking of the needle and the points, the cutting away of the brass or fastening of the points, and the necessity of hand-mending of the fabric after it leaves the machine. The evils here recited are the cause of great expense in repairs and imperfect goods, and our device overcomes these evils in a very simple manner. We attain these objects by the mechanism illustrated in the following drawings, in which- Figure l is a plan view of our device. Fig. 2 is an edge View of the same. Fig. 3 is a section on line w 00, Fig. 1. Fig. 4 is a view of the point end. Fig. 5 is a view of the attached end. Fig. 6 is a View looking down on our device as attached to the machine. Fig. 7 is an elevation and sectional view of the same. Fig. 8 shows points inserted on brass,

but not fastened. Fig. 9 shows how brass is riveted to hold points.

Similar figures of reference refer to similar parts throughout the views.

The machine illustrated to show how we at- 6. Serial No. 613,370. (No model.)

tach our device was patented by William Pearson February 27, 1883, No. 273,143.

The part 1 of the machine is stationary, and part 2 revolves around it, moved by a feeding mechanism which operates it intermittently, the distance being as the center to center of the outer end of the points 3, and at each movement the bent needle 4, carrying a thread 4, is projected outward and into the loop 5 of the fabric strung upon the points 3. The points are secured to an annular ring 6, seated on part 2 and held imposition by segmental clamps 7. The'ringG is known as a brass and is grooved at its upper edge 8 to receive the points 3 and also on its inner edge at 9 to receive the bent end 10 of the points 3. The projections 11, (seen in Fig. 8,) afterthe points are inserted, are riveted down, as seen at 12 in Fig. 9, to clasp and hold the points; but the part 12 is not allowed to project above the body of the points 3. This means is delicate, as the points in some instances are as fine as wire-gage No. 22 and the pitch or center to center correspondingly fine, there being as many as seven hundred and fifty points 3 and projections 11 12 on one ring 6.

The needle 4 is bent, as shown, and is The points 3 have a groove 14 in their upper surface and part way'down the bent part, and the needle 4 enters the groove 14-, which permits its entrance within the loops of the fabric 5, hung on the points 3. If the needle 4 is not properly set, it does not enter the groove 14 of the point 3, but goes to one side and tears out a portion of projection 12, which holds the point 3, and also instead of entering the loop of fabric 5 passes to one side, dropping a stitch, or cutting the loop and destroying it, making it necessary to mend the fabric by hand, which renders it less valuable and salable. When the needle 4 strikes the projection 12 on account of not being in line, it not only loosens the points, but bends or more likely breaks the needle, so that the evils we have described entail an annual loss in recutting brasses, replacing needles and points greatly in excess of the first cost of the entire machine. The brasses cannot be brazed, soldered, or otherwise repaired, owing to the delicacy of the parts, and'must be made'of an inteswung by an arm 13, to which it is clamped gral part for like reason, so that when a needle tears out the projections 12 and loosens or bends points 3 the brass 6 must be entirely recut to have all the points in the same horizontal plane. If the points are bent to one side, the attendant cannot readily pass the fabric over them, as moving at the rate of one hundred per minute great dexterity is required. Failure to use all the points lessens the output of the machine and wastes the looping thread or yarn until the fabric can be again impaled upon the points.

To overcome the defects herein enumerated of broken and bent needles, torn brasses, distorted and loosened points, dropped stitches, and wasted material, we fasten our guide and guard upon the stationary part 1, by means of screws 15, in the path of the needle 4, the guide and guard having two legs 16, one upon each side of the needle path brought together at 17. There the under side is cut away at 18, or thinned to pass over the points 3 and projections 12 without touching, a depending shield 19 is formed downward at an angle from connection 17 and protects the brass, the bent ends 10 of the points 3, and the projections 12 as they pass by the needle 4, but does not touch them. The connection 17 has a guide 20 to direct the needle 4 correctly, and the depending shield 19 has a groove 21 upon its inner face as a means to direct the needle 3 into guide 20 should it be set too low or to one side of the entrance to guide 20 or the groove 21, the groove being of V-shaped section to correctly direct the needle 4 when diverging from its true course and deflect it into the guide 20.

It will be evident that a skilled mechanic after seeing our device might make modifications of the same which would accomplish similar results. Therefore We do not confine our invention to the exact construction shown; but

\Ve claim- 1.. As a new article of manufacture, a brass and pin protector for loop-machines, having projections thereon at its outer end extending downward, and inwardly at each side of a needle-guide central between the said projections, and means at its inner end for attachment to the machine, substantially as described.

2. As an attachment for loop-machines, a brass shield and needleguide, projections thereon extending at each side of the needleguide, a downward projection integral with said projections and having a central groove therein, and means for securing the attachment to the machine, substantially as described.

3. The combination with a loop-sewing machine having a movable brass ring and impaling pins or points secured thereto and projecting therefrom, of a brass and needle protector, having at its outer end a central needle-guide and at each side thereof extensions reaching above and over the brass and pins or points, and depending therefrom a shield at the back of the brass and pins or points, a groove therein upon its inner face, and at the inner end of the attachment means for securing it to the stationary part of the machine, substantially as described.

4. An attachment for machines for sewing looped fabrics having means for securing it to the central or stationary part of said machines, an end portion for covering the brass and pins of said machines, a central guide for the sewing-needle, and a depending shield for covering the rear of the brass and pins, said shield having a groove in its face which terminates in the said guide, substantially as described.

In testimony whereof we atliX our signatures in presence of two witnesses.

ALBERT YOUNG. \VILLIAM XVENNER. lVitnesses:

HENRY S. lVICCAFFREY, R. O. WRIGHT. 

